Earring spring



FIG. 1 is a front, left, top perspective view of a spring for a clip-onearring showing my design therefor;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevational view thereof, the opposite side being anidentical mirror image;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a front elevational view thereof; and,

FIG. 6 is a rear elevational view thereof.

The ornamental design for an earring spring, as shown and described.